2A533A Vol.2 Part.2 (38-64)
Preperation quiz for comm/nav mission systems journeyman
- 1.Which is not a flight line precaution used to protect electrostatic discharge sensitive components?
- A.
Using protective tote boxes
- B.
Covering line replace unit (lru) connector plugs
- C.
Touching the ends of aircraft wiring to the KRU case prior to installiation
- 2.When working on electrostatic discharge sensitive devices in the shop area, you must use
- A.
A grounded dline replace unit cable
- B.
Non conductive antistatic mats
- C.
A grounded workbench
- 3.Which action could pose a safety hazard to personnel in an electrostatic discharge protected area?
- A.
Use of certain ionizers
- B.
Wearing of personal clothing
- C.
Improper use of conductive bags
- 4.Shielded cable consits of
- A.
A metallic braid over the insulations
- B.
A metal conductor covered with a dielectric
- C.
An inner conductor sepearted by an insulation dielectric
- 5.Which type of cable is used to carry radio-fq power form on point to another?
- A.
Insulated wire
- B.
Shielded
- C.
Coaxial
- 6.Which is not a type of connector coupling?
- A.
Friction
- B.
Bayonet
- C.
Insertion
- 7.What is not a radio-frequency connector precaution?
- A.
Never step on the cable
- B.
Ensure a good grip when using pliers
- C.
Ensure you solder double shielded cables together
- 8.The serial tansmission bit rate for the military standard 1553B data bus is
- A.
1 Mbps
- B.
16 Mbps
- C.
32 Mbps
- 9.What is the structure of a military standard 1553B data word?
- A.
20bits long; 3 sync; 16 data/command/status; 1 parity bit
- B.
32bits long; 3 sync; 28 data/command/status; 1 parity bit
- C.
20bits long; 1 sync; 16 data/command/status; 3 parity bit
- 10.What is not a funciton of the military standard 1553B data bus mode codes?
- A.
Resetting terminals
- B.
Synchronizing the subsystem time
- C.
Executing a bus controller broadcast command
- 11.Twisting an optic fiber during instalation or maintenacne results in
- A.
Disturbances in lay uniformity
- B.
Greater elasticity of the glass fibers
- C.
Reduced optical power transmission
- 12.What is used to convert fiber optic light transmissions to electrical signals?
- A.
Detector
- B.
Reciever
- C.
Photodiode
- 13.Optoelectonic transducers perform what function in a fiber transmission?
- A.
Amplify output circuit signals
- B.
Convert electrical signals to light signals
- C.
Convert optical energy to electrical engery
- 14.Utilizing exact dimensions for stripping wire ensures
- A.
Connectors mate properly
- B.
Solder adheres properly
- C.
Proper connection
- 15.Flux is designed to
- A.
Ensure electrical conductivity
- B.
Bond the electrical connection
- C.
Prevent oxygen from combining w/ metal
- 16.Proper care of an eletic soldering iron invalues
- A.
Jerking the iron to remove excess solder
- B.
Tapping the iron or a table to remove excss solder
- C.
Keeping the iron in a proper holder when your not using it
- 17.What is the utmost importance in the soldering process?
- A.
Cleanliness
- B.
Strpping the wires
- C.
Connecitng the wires
- 18.Which is not a type of solderless connector?
- A.
Splice
- B.
Terminal lug
- C.
Connector splice
- 19.What type of solderless connector is used to permit easy and efficient connectios to electrical equipment?
- A.
Splice
- B.
Terminal lug
- C.
Connector splice
- 20.One purpose of crimper positioners is to
- A.
Put the pin contacts in the proper position
- B.
Align the crimper handles to the pin contact
- C.
Put the turret head in line with the pin contact
- 21.The colored end of an insertion and extration to is used for contact
- A.
Insertion into a rear-release connector plug
- B.
Insertion into a fron-release connector plug
- C.
Extration from a rear-release connector plug
- 22.One way of pressure and moisture sealing the back of a connector is to use
- A.
Silicone tape
- B.
Silicone caulking
- C.
Heat-shrinkable tape
- 23.The heat and air pressure required for proper installatio of heat-shrink products is contolled by the
- A.
Tool operator
- B.
Pressure controller
- C.
Air/nitrogen regulator
- 24.Electromagnetic pulse hardened cable is considered nonreparable by local personnel if it has damage to the
- A.
Broken internal wires
- B.
Damage to the calbe jacket
- C.
Broken wire at the connector
- 25.To what precaution must you adhere prior to performin a wire repair job?
- A.
Ensure proper lighting
- B.
Invetory require tools
- C.
Read all prcedures in TO 1-1A-14
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